$5tanx-4=0$

$-0.01+0.120$

$\sin\left(o\right)\left(\cot\left(o\right)+\tan\left(o\right)\right)=\sec\left(o\right)$

$2xy^2-xy+2;\:x=2;\:y=-1$

$\left(-14\right)\left(23\right)$

$\lim_{x\to\infty}\left(\frac{3x+2}{3x-1}\right)^{2x+4}$

$\left(3-i\sqrt{2}\right)\left(3+i\sqrt{2}\right)$